Handout
University of Colorado

University of Colorado: Error, Accuracy, & Precision

For Students 9th - 10th
A serious paper by serious geographers, discussing at full length the problems caused by error, inaccuracy, and imprecision in Geographical Information Systems. The definitive word in the real world.
Handout
Other

Bellevue: Accuracy vs. Precision & Error vs. Uncertainty

For Students 9th - 10th
A really nice distinction here in this longish piece from the Bellevue Community College. It's not just accuracy vs. precision, but also error vs. uncertainty. This is a necessary additional consideration for any paper on the topic.
Handout
Other

Artel: Lab Report 4: Defining Accuracy, Precision, and Trueness

For Students 9th - 10th
This maker of precision instruments presents this solid article on the topic of accuracy and precision. Great discussion of types and sources of error, and quality control.
Handout
Virginia Tech

Virginia Tech: Precision Without Accuracy in Crime Scenes

For Students 9th - 10th
A police forensics scientist discusses how precision will muddy the true accuracy of a crime scene. Interesting stuff. A new real world look at precision and accuracy.